Science Definition and 990 Threads

We repeatedly receive some fundamental questions, some of them of philosophical nature, which we're not very keen to answer - not because they weren't legitimate questions, but because we made the experience, that they simply lead nowhere, and, I'll have to admit, because of the lack of...

I'm a math major interested in the field of quantum information science and quantum computing, but I'm unclear on what path to take to explore the field. The field is presented as being at the intersection of physics, computer science, and mathematics but it seems that a majority of the experts...

What would be the best degree to have along side a degree in computer science? I am thinking it is either physics or mathematics. My interests involve, robotics, artificial general intelligence, 3D graphics, computer vision, neural nets, file compression and aerospace engineering(It’s an...

How do you learn to be a scientist without being told what to calculate, what to think about, etc? I feel like my hand has been held this whole time when I was doing experiments or calculations, I feel kind of unable to come up with new ideas myself sometimes. Are you a scientist? (doing a PhD...

In conducting research into historical accounts of Earths magnetic field, I consistently come across proposals of stable planetary magnetic grid systems; many of these theories which have apparently been developed through much time and effort. While I am unaware of any theory that cannot be...

Hey, I'm a new member, I'm an engineering student. How have people found this forum?

Hello PF, I am currently pursuing my Masters in Physics with specialisation in material science. But I am interested in quantum mechanics and want to do PhD and then research in quantum mechanics. But in today's date is it good to go for theoretical physics rather than going for some...

When anyone on PF gets involved in a debate and uses pop science to back up their argument their opinion is usually immediately rejected on the grounds that pop science as a source is unreliable and lacking in the necessary detail. Only peer reviewed works are accepted and in general that's...

In a projectile motion practical, we had to investigate the relationship between launch of projectile and the range it travels. Increasing the height will obviously increase the range. However, we are trying to understand why it does in a more scientific way. We already know that increasing...

Hello Community, as mentioned above I am currently gathering information for a documentary about Stephen Hawking scientific contributions. According to "The Guardian" the most important are: - Singularities in Gravitational Collapse -Blackhole mechanics -How Blackholes can vanish -How Galaxies...

Hi all who view this, I am currently a high school senior and I plan to go to a community college for my first two years of college study to try and find what I would like to major in before embarking on a certain major I may not even find all that interesting later on. I love science, but my...

The past year and a half have seen an unexplained increase in MLB home runs. Interesting article. Bounciness, weight, and air resistance seem to be involved.

Homework Statement If you were standing in a puddle. Would it be safer to spill sugar or salt in the puddle during an electrical storm? I know that salt water conducts electricity better than sugar water. 2. The attempt at a solution I understand that the salt puddle will conduct electricity...

<< Thread moved from a technical forum, so no HH Template is shown >> Our teacher gave us a lab, and we have to write a procedure on how to test the electrical conductivity of multiple substances. However, on the materials, all that was written was "electrical conductivity tester", which I'm...

Homework Statement Choose a technology such as MP3 players, lasers, medical imaging, or another that interests you. Research the internet and find out how it is related to the physics of light and waves. In approximately 100 to 150 words, write a paragraph explaining the link between our...

Some very nice photos here: Picture of Single Trapped Atom Wins UK Science Photography Prize (Gizmodo) e.g. A Strontium atom Polymers.

Greg Bernhardt submitted a new PF Insights post Name the Science Book Author Continue reading the Original PF Insights Post.

I know that energy increases with distance, but what is the relationship? What are different ways to measure something decreasing over distance or time. I really don't have the time to help my younger sister do her homework so I need someone to help me explain to her the relationship concerning...

Hello everyone, This is my first post and I would like to briefly introduce myself and my situation. I'm 27 years old and a high school drop out, former drug addict, and three time college drop out. I have severe ADHD and insecurities which have made academia too difficult for me to pursue. I...

I was watching a panel discussion program about the future of education and shockingly everyone agreed the future lies in studying more math based subjects - its vital. Of course those that frequent here know its true. But now another shock. The Australian, Young Australian and Senior...

Hello all, I revised a resume for data science positions. I empathized on skills that are needed for the positions like statistics/mathematics and programming. I mention that I am familiar with the theory of many machine learning algorithms and Python libraries used for data analysis. I still...

Homework Statement A comet with a perihelion distance of d = 1.242 is currently 211(degrees) from pericenter, and 4.499 AU from the Sun. Compute the semi-major axis a of this comet’s orbit. Homework Equations P(^2) = a^3The Attempt at a Solution I tried to use Kepler's third law but I don't...

A PBS News Hour article on creativity and how we can nurture and develop it: https://www.pbs.org/newshour/science/the-secret-to-creativity-according-to-science

Hello, I am trying to do some projects on data science/machine learning using Python, but I am not sure what to do. I downloaded a very simple dataset from WHO, and I am trying to do something with it, but most of (actually all) what I can do with it is data manipulation and exploratory data...

Hello everyone, sorry in advance for the long post I am about to finish up with a masters degree in Data Analytics within a year and will soon be switching careers from being a Systems Admin, which I am quickly burning out on. As an undergrad, I wanted to major in Physics, but the college I...

If you've seen a recent movie trailer with the entire city of London on some treads and able to move around - that is Mortal Engines. Wired magazine takes a look at the science that goes along with that, and even has a few "homework" problems to work out. :smile...

Hello, I've noticed that a number of employers ask for knowledge in Linux and shell scripting for data science positions. How does bash shell scripting help in the filed of data science, or in general why to learn it? Thanks

A reference article to other articles on science facts that were discovered this year 2017. Some were theorized and finally proven, others were discovered totally by chance. Which ones most impressed you? http://www.sciencealert.com/23-science-facts-we-didn-t-know-at-the-start-of-2017

Hello, I want to switch careers from EE to data science. I am taking courses in the field, reading books, and will do some online projects. Do I need to take internships on top of that? If yes, how willing are the companies to take interns? Would they respond if I emailed them without...

Greetings people from PF! I want to start my journey as a Data Scientist and currently I'm doing baby steps. I heard from people that every Data Scientist should learn Python, but problem is that I'm currently learning Java from the book Head First Java where they intuitively explain object...

Hey everyone. I just found out about the forum and already discovered a lot of good and useful content. Anyway, is anyone in or studying for some area of knowlegde which just seems that it's not the right thing for you? And that physics, astronomy, mathematics or, perhaps, other fields related...

Greg Bernhardt submitted a new PF Insights post Work Ethic Is a Key to Success for Science Majors Continue reading the Original PF Insights Post.

A postulate is a statement that is taken to be true, to serve as a premise or starting point for further theories. (e.g. Bohr's postulates) Hypothesis is a theory which can after testing be accepted or rejected. But a postulate is something that is assumed to be true without proof. Among other...

https://backdoorgraduteschooladmissions.quora.com/Mastering-lower-division-mathematics-courses-especially-for-computer-science-majors The above link has a list of free online material to learn a lot of the math required in computer science. I'm already a 4th year undergrad, but I didn't learn...

I was looking at assist.org. A website for community college students that lists the courses you need to take at a CC in order to transfer to a UC or CSU. I'm a CompSci major, and realized that everyone of the articulation agreements required 3-4 quarters of Physics. I'm just wondering, why is...

Hi everyone, I am working on a second bachelor's degree in Computer Science, and am hoping to enter a Phd program in fall of 2019. Recently, I have taken an interest in Chaos Theory and was wondering if it is possible to do research in the field in the Computer Science department, or if it is...

Hi, I'm sorry if this isn't explained very well, but I'm hoping someone can remind me of this field of what I think was maths or physics. I read that people had calculated that things in nature like the amount of blood in our bodies and the length of all the arteries and capillaries for...

Hi guys. As you may know there is a big distinction between Science and Engineering. Richard Feynman said that Science doesn't have a target, like Engineering has. Science is about studying the universe, and you can do it by focalizing your attention on the Biology, on the Chemistry, on the...

[Edit, Dec 22] Science selected cosmic convergence (observation of the collision of two neutron stars) as their Breakthrough of the Year. The winner of the people's choice was gene therapy success (successful clinical trial of using gene therapy to treat childhood neuromuscular disease)...

I usually read science section in Google news and it's really irritating how lately any time someone "predicts" the world will end they put it on top. But now they really seem to hit the rock bottom. Here's a screenshot and you can see first news is again about "end of the world" although this...

Hi guys. My question is about science. If scientists, or people that want to became scientists, have to choose and only one field of science, like physics, chemistry, biology, math, etc...there isn't the risk of limitate themselves? I mean, you know, every science field is very wide, and time is...

News A variety of targets will be looked at, including planets and moons within our solar system, various star systems and many galaxies from the early universe, where the high redshift and Hubble’s wavelength range made observations difficult. For exoplanets, the strategy is to look at the...

Hello, my name is Michal, I like physics and science itself. I looking for interesting people. I also looking for skype discussion about science, physics, my skype is miso16211. Who want, can add me. I have own webcam, microphone, and dasboard for writing. With sincerely, Michal.

Homework Statement A car starting from rest accelerates to the left. It takes 14 seconds to travel a distance of 20 meters. What is the car's average velocity? I'm really confused by this question I'm not sure whether to use change in displament divided by change in time or (Velocity Initial...

Hi Which are the mains difference between Computer engineering and Computer Science? Which different kind of work do a computer engineer instead a computer scientist ?

How would you define happiness,

Hey all, I am narrowing down on my final semesters in college this coming year. I'd like to start making my larger (and better) projects available to potential employers. I was wondering if Github or making a personal website would be better? I'm not going for a front-end development job, so I...

The uncertainty principle states that anyone given person who knows a lot about a given particles velocity will know less about the location, but if then they try to observe the location, the less they will know about the velocity. What if two scientists observed one particle though. One...

Hi all. I'm reviewing my daughter's science homework and I disagree with how things are being presented. I wanted some feedback from everyone here to get a sanity check on my own thinking. The exercise is this: answer whether these properties of matter are either an observable property or a...

Warning! Laymen reasoning ahead :) I've long heard that in science nothing is proven. That proof is a mathematical term. So what exactly do you call a certifiably known fact? An example is that the Earth is round or at least that the Earth is not flat. What do you call that? Can we not say it's...